Carson has brown eggs and white eggs

Question

 the ratio of brown eggs to all of the eggs that Carson has is 4 :9 which statement must be true?

Carson has exactly 13 eggs

Carson has exactly for brown eggs

Carson has four brown eggs for every 9 eggs Carson has four brown eggs for every 13 eggs

Answer 1

A ratio does not indicate the exact number of the items. It only states: for so many of one item, there are so many items of another.

 

So: Carson has four brown eggs for every nine eggs.